公开(公告)号：CN106206211A

公开(公告)日：2016-12-07

申请号：CN201610774378.6

申请日：2016-08-31

Applicant: 成都磁动势科技有限公司

Inventor： 张科 ,  王琳 ,  翟培件

IPC: H01J3/36

CPC classification number: H01J3/36

Abstract: 本发明涉及电子枪电源技术领域，尤其涉及一种电子枪电源自动控制装置，包括控制器、继电器、采集模块、所述采集模块采集到丝极产生的电子束的发射方向，当采集到电子束的发射方向偏离预设方向时，控制器控制丝极的加热电流，使得所述丝极发射的电子束偏移至预设方向，继电器连接控制器，进而提高了控制效率。

公开(公告)号：CN111403251B

公开(公告)日：2025-02-21

申请号：CN202010286352.3

申请日：2020-04-13

Applicant: 中国兵器科学研究院宁波分院

Inventor： 李晓静 ,  王大森 ,  张旭 ,  郭海林 ,  夏超翔 ,  张宁 ,  赵仕燕

IPC: H01J3/12 ,  H01J3/36

Abstract: 本发明涉及一种射频离子源离子束束径约束器，其特征在于：所述束径约束器包括具有可供离子束穿过的中空结构的底座、多个叶片及驱动机构；所述多个叶片设于底座一端并环绕中空结构呈圆周排布，多个叶片的尾端伸入中空结构所在区域以围合形成可供离子束穿过的光阑，所述驱动机构可驱动叶片的尾端相对叶片排布形成的圆周中心运动以调节光阑大小。本发明还涉及一种包括束径约束器的控制装置及对应的方法，采用该装置及方法进行离子束束径控制，操作方便，调节精度好，效率高，而且成本节约。

公开(公告)号：CN111403251A

公开(公告)日：2020-07-10

申请号：CN202010286352.3

申请日：2020-04-13

Applicant: 中国兵器科学研究院宁波分院

Inventor： 李晓静 ,  王大森 ,  张旭 ,  郭海林 ,  夏超翔 ,  张宁 ,  赵仕燕

IPC: H01J3/12 ,  H01J3/36

Abstract: 本发明涉及一种射频离子源离子束束径约束器，其特征在于：所述束径约束器包括具有可供离子束穿过的中空结构的底座、多个叶片及驱动机构；所述多个叶片设于底座一端并环绕中空结构呈圆周排布，多个叶片的尾端伸入中空结构所在区域以围合形成可供离子束穿过的光阑，所述驱动机构可驱动叶片的尾端相对叶片排布形成的圆周中心运动以调节光阑大小。本发明还涉及一种包括束径约束器的控制装置及对应的方法，采用该装置及方法进行离子束束径控制，操作方便，调节精度好，效率高，而且成本节约。

公开(公告)号：DE3878942D1

公开(公告)日：1993-04-15

申请号：DE3878942

申请日：1988-01-27

Applicant: TEKTRONIX INC

Inventor： MCGLOTHLAN J KIRK

IPC: H01J9/14 ,  H01J29/80 ,  H01J3/36

Abstract: Mesh lens (12) for PDA-type cathode-ray tubes (10) is constructed in a manner that permits deformation into a concavo-convex shape with a substantially shorter radius of curvature than heretofore obtainable with prior art devices. The mesh lens (12) particularly comprises a multitude of interconnected webs (58) forming an array of apertures (60). Each web (58) has opposing ends and a midline (62) extending between those ends. The mesh (12) is configured so that an individual aperture (60) of the array is formed by a set of webs (58) interconnected at their ends. The midline (62) of each web in the undeformed mesh defines a bent line. The mesh can be deformed into a concavo-convex shape having a relatively short radius of curvature. This is so because the individual webs of the mesh respond to the application of deformation forces by initially straightening, thereby effectively delaying the development of tensile stresses in the webs.

公开(公告)号：CA1093710A

公开(公告)日：1981-01-13

申请号：CA287335

申请日：1977-09-23

Applicant: AMERICAN OPTICAL CORP

Inventor： GEE ALAN E

IPC: H01J37/04 ,  H01J37/28 ,  H01J3/36

Abstract: A scanning microprobe in which a gun generates a beam of charged particles controlled to scan the surface of a specimen in a predetermined and defined manner. In order to permit blanking of the particle beam by removing the trace of the beam from the surface of the specimen at a particular time for a predetermined period, high-speed, high-stability switching circuitry is utilized. A vertical MOSFET switching transistor is connected between one plate and ground of the system. Also connected between this plate and a deflection voltage source is R current-limiting resistor having a ratio of approximately 15 9 000-1 with respect to the switch MOSFET in its turned-on condition. A second switch is provided to momentarily shunt the currentlimiting resistor when the MOSFET switch is turned off. This produces an initial rapid rise time of voltage on the deflection plate causing the beam to immediately move off the specimen surface. Turning off of the MOSFET switch and momentarily turning on the shunting switch is accomplished by an external beam blanking signal.

公开(公告)号：AU5728473A

公开(公告)日：1975-01-09

申请号：AU5728473

申请日：1973-06-25

Applicant: HENRY GOTTLOB KOSMAHL

Inventor： KOSMAHL HENRY GOTTLOB

IPC: H01J23/027 ,  H01J29/64 ,  H01J3/36

Abstract: A magnet applies a magnetic field of predetermined intensity and shape to a spent electron beam over an axial distance having a predetermined relationship to the frequency of operation of a utilization device which has extracted energy from the electron beam and at a predetermined axial distance after the beam has left the magnetic field of the utilization device and entered the beam expansion region and beam stabilization region. The stabilizing magnetic field is terminated abruptly before the electron beam enters a collector apparatus.

公开(公告)号：CA2783356C

公开(公告)日：2016-05-10

申请号：CA2783356

申请日：2012-07-11

Applicant: BRUKER DALTONICS INC

Inventor： STEINER URS ,  MOELLER ROY P ,  DEFORD DAVID

IPC: H01J3/36 ,  H01J49/02

Abstract: Methods and systems to compensate for distortions created by dynamic voltage applied to an electron multiplier used in mass spectrometry. An electron multiplier has a cathode end accepting ion flow, an opposite emitter end and an interior surface. The electron multiplier produces an electron output from ions colliding with the interior surface. A variable power supply has a voltage output coupled to the cathode end and the emitter end of the electron multiplier. The voltage output changes dynamically to adjust the electron output from the electron multiplier. An anode is located in proximity to the electron multiplier. An electrometer is coupled to the anode in proximity to the electron multiplier to measure the current generated by the electron output. A low pass filter circuit is coupled to the emitter end to the ground of the electrometer to attenuate emitter voltage changes. A bias circuit is coupled to the emitter end to stabilize emitter to anode voltage difference.

公开(公告)号：DE3878942T2

公开(公告)日：1993-08-12

申请号：DE3878942

申请日：1988-01-27

Applicant: TEKTRONIX INC

Inventor： MCGLOTHLAN J KIRK

IPC: H01J9/14 ,  H01J29/80 ,  H01J3/36

Abstract: Mesh lens (12) for PDA-type cathode-ray tubes (10) is constructed in a manner that permits deformation into a concavo-convex shape with a substantially shorter radius of curvature than heretofore obtainable with prior art devices. The mesh lens (12) particularly comprises a multitude of interconnected webs (58) forming an array of apertures (60). Each web (58) has opposing ends and a midline (62) extending between those ends. The mesh (12) is configured so that an individual aperture (60) of the array is formed by a set of webs (58) interconnected at their ends. The midline (62) of each web in the undeformed mesh defines a bent line. The mesh can be deformed into a concavo-convex shape having a relatively short radius of curvature. This is so because the individual webs of the mesh respond to the application of deformation forces by initially straightening, thereby effectively delaying the development of tensile stresses in the webs.

公开(公告)号：NL7600418A

公开(公告)日：1977-07-19

申请号：NL7600418

申请日：1976-01-16

Applicant: PHILIPS NV

IPC: H01J9/14 ,  H01J29/07 ,  H01J29/81 ,  H01J3/36 ,  H01J29/80

Abstract: An apparatus for fabricating a quadrupole shadow mask includes a reel for storing a web of insulating material having a conductive layer on one side thereof, a reel for storing a long metal strip having a plurality of spaced apertures arranged in parallel rows, means for cutting the web into strips and a roller having circumferential grooves for positioning and then pressing the insulating strips onto the surface of the metal strip between the rows. The resulting strip is guided through a heating device and then is cut into sheets of predetermined length.

公开(公告)号：US07057199B2

公开(公告)日：2006-06-06

申请号：US10503547

申请日：2003-01-21

Applicant: John Gavin Perry

Inventor： John Gavin Perry

IPC: G01N21/85 ,  H01J3/36

CPC classification number: G01S7/4817 ,  G01C11/025 ,  G01C13/008 ,  G01S7/4811 ,  G01S7/487 ,  G01S17/023 ,  G01S17/87 ,  G01S17/89

Abstract: An Laser Airborne Depth Sounder (LADS) system for the measurement of water depth is disclosed, the system includes a transmitter and a receiver of laser light having at least two wavelengths so as to receive a first reflection from a water surface and a second reflection from a water bottom an a rotating mirror which directs the laser light to the water and receives the second reflection of the laser light from the water bottom and directs the second reflection to the receiver, where the receiver includes an optical shutter (76) adapted for selectively allowing the passage of the second reflection laser light therethrough. The shutter (76) may include a LCD matrix or mechanical light blocking elements. The LCD matrix may be arranged in a central circle (82), an inner ring (80), and an outer ring (78).

Abstract translation: 公开了一种用于测量水深的激光机载深度探测器（LADS）系统，该系统包括具有至少两个波长的激光的发射器和接收器，以便从水面接收第一反射，并从第二反射 一个水底部，一个旋转镜，它将激光引导到水中并接收来自水底的激光的第二次反射，并将第二反射引导到接收器，其中接收器包括适于选择性的光学快门（76） 允许第二反射激光通过其中。 快门（76）可以包括LCD矩阵或机械遮光元件。 LCD矩阵可以布置在中心圆（82），内环（80）和外环（78）中。